Box lidder feed



' Sept. 6,1938. H. PAxToN "2,123,953

Box LIDDER FEED original Filed April '24, 1955 s Sheets-sheet 1 Amd. f JML ZIESEL Qa O w www no M f rw ...g

sept. 6, 193s.

H. vPAx'roN BOX LIDDER FEED 3 Sheets-Sheet 2 Original Filed April 24,1955 1938., H. PAx'roN BOX LIDDER FEED Sept. 6,

' Original Filed April 24. 1935 3 Sheets-Sheet, 5

4mm/ff Patented Sept. 6, 1938 i UNITED STATES PATENT oEElcE MachineryCorporation,

. poration of Delaware San Jose, Calif., a cororiginal application April24, 1935, sei-laiL No.

I 17,970. Divided and this application February 2'1, 1938, Serial No.191,565

7 Claiml; (Cl. 1 1@ This invention relates to devices for feeding boxesto and from a lidder and has particular utility in the operation of alidder in lidding boxes overlled with fresh fruits or vegetables.

This case is a division carved from the joint application Ser. No.17,970, filed April by 'Chester E. ODonnell and myself on a Method ofand apparatus for packing fresh whole fruits and the like".

'I'he present invention embraces that portion of the subject matterpresented in the parent case above referred to which relates to thefeeding of a packed box into a lidder and the coordinate ejecting of thelidded boxfrom said lidder.

It is an object of my invention to provide an improved mechanismv forautomatically feeding vpacked boxes to a lidder and removing the liddedboxes therefrom.

The manner of accom lishing this object as 4well as further objects andadvantages will be made manifest in the following description taken inconnection with the accompanying drawings:

Figure 1 is afront elevational view ci the preferred embodiment of theinvention.

Fig. 2 is a horizontalsectional view taken on the line 2-2 of Fig. l.

Fig. 3 is an enlarged fragmentary perspective view illustrating thedetails of the control mechanism in the pre-presser.V I

3 Fig. 4 is a fragmentary sectional view taken on the line 4-4 of Fig.2.

Fig. 4a is a fragmentary diagrammatic View taken on the direction of thearrow 4a of Fig. 3,

and illustrating the overthrow mechanism -of the pre-presser in neutralposition.

Fig. 4b is a view similar to Fig. 4a.A and illustrates the overthrowmechanism in position for elevating the press table.

Fig. 4c is a view similar to Fig. 4b and illus- 4o trates the overthrowmechanism in position vfor lowering the press table.

Fig. l5 is a fragmentary operation view of the pre-presser and controlmechanism for feeding the box into the lidder and shows the pre-presser5 table moving downwardly with the ejector dog shifting the box againstthe discharge stop to position the latter over the operating camtherefor.

Fig. 6 is a fragmentary operation view illus- 50 trating the situationat the instant of completing the downward movement of the pre-pressertable in progress in Fig. 5. o

Fig. '7 is a transverse sectional view taken on the line 1--1 of Fig. 6.

55 Fig. 7a is an enlarged transverse sectional view conveyor and feedsimilar to Fig. '1 and showing the box stop in elevate'dposition.

Fig. 8 is a view similar to Fig. 5 and illustrating the ejection of abox from the pre-presser into the lidder the discharge stop in thepre-presser to its vertical position, and the automatic lowering of thestop operating cam into its inoperative position.

Fig. 9 is a view similar to Fig. 5 illustrating thesituation where thetable of the pre-presser has arrived downwardly with a loaded boxduring. the performance of a lidding operation in the lidder, this viewshowing the lidder table returning to its downwardmost position, uponarrival at which this table will shift the pre-presser disfrom 'the boxon the pre-presser table.

Fig. 10 is an enlarged fragmentary sectional detail View taken on line|0||i of Fig. 6 andv showing the stop cam operating latch and lug.4

Referring specifically to the drawings the apparatus of my inventionillustrated therein may be indicated by the numeral 2|), this apparatusincluding a lid pressing. nailing and strapping machine 2|, apre-pressing machine 22, and a box mechanism 23 for supplying overlledpacked boxes with the machine- 2| and 22.

The lid pressing, nailing and strapping machine 2| is preferably similarin structure andoperation to the machine of this type disclosed inapplication Ser. No. 688,104, iiled September 5, 1933; by myself andjoint inventors Gerald C. Paxton and Harry D. Benson, or it may be likethe machine disclosed in application for U. S. Letters Patent Ser. No.709,176, led January 31, 1934, by the same three applicants, saidapplications having been co-pending with the parent case of the presentdivisional application, and having since issued as U. S. No. 2,093,733,respectively.

Neither side fiushers nor a crown sheet are employed in the machine 2|.With this exception and the exceptions to be noted hereinafter, the'machine 2| may be identical with the machine described in either of theco-pending applications.

The machine 2| has a frame 32 and a nailing table 33 verticallyreciprocable within the frame 32 by a power unit 34 controlled by YaYpedal 35. Mounted on the upper end of the frame 32 are nailing heads 36and a strapper head 31.

The nailing table 33 a plan view of which is shown in Fig. 2, includesend cross'bars 40 having upright guide bars 4| at their opposite endswith the consequent restoration of charge stop operating cam against aroller on such stop to disengage this stop Letters Patent No. 2,084,048and 4 f which are mounted idle rollers 46.

c 53. 'I'he rod front ofthe box.

for sliding within vertical angle iron members 43 of the frame 32. 'I'heend bars 40 are connected by longitudinal bars 44 and 45 upon Pivotallymounted on the cross bars 40 and having operating mechanism exactly asshown in the rst mentioned co-pending application are side flushershafts 48, the shaft carrying no flushers,y however. but instead lateralbox centralizers 49 and longitudinal box centrali-zers 50 which broughtinto operative relation with a box on the table 33 when the table iselevated by inward swinging of shafts 48, mentioned co-pendingapplication. v

Mounted between the bars is a box ejector and stop mechanism 52.Themechanism 52 includes a discharge stop 51 and a. rebound box stop 58.Connecting the stop 51k with al downward extending arm 53 on one of theshafts 4B ls a link 54 which swings `the stop 51 down away from in frontof a box on the table 33 each time the shafts 48 are swung inwardly bythe lifting of the table.` 'I'he link 54 is telescopic in constructionand includes a rod 54a which has a head 54h at one end and a clevis 54eat the opposite end which pivotally connects to the arm 54a is slidablein lugs 54d provided on a member 54e which is pivotally connected vto anarm 51a extending laterally from the hub of the stop 51. Coiled aboutthe rod 54a between the clevis 54cand the lowest of the lugs 54d is anexpansive spring 541 which tends to maintain the link 54 in its extendedcondition of greatest length as shown in Fig. 4 but which permits thetelescoping of, this link to reduce its length. j

'Ihe stops 51 and 58 (Figs. l, 2, 9 and 10) are mounted on a shaft 52a,the opposite ends of which are supported on the table bars 4|). The stop51 is rotatable on this shaft and is yieldably urged against a. collar52h, fixed on the shaft, by a short expansion spring 52e coiled aboutthe shaft. When a box is delivered onto the table 33, it depresses thestop 58 which is pivotally mounted on a block 58aflxed on the shaft52a,Y the stop 58 (Fig. 10) being yieldably pressed upwardly into itsstop position as shown in Fig. 1. When this box hits the stop 51, itcompresses the spring 52e, the box at this time clearing the stop 58 andpermitting the latter to be lifted by its hidden spring into its stopposition as shown in Fig. 1. When the inertia of the box has beenstopped by lthe compression of the spring 52e, this spring shifts thebox backwardly against the stop 58, there still being a gap between stop51 and the collar 52h when this takes place. Upon the operation of thelidding machine 2|, as described in the first aforementioned co-pendingapplication, the inward swinging of the shafts 4E by engagement of rolls48a with cam tracks 4Bb shown in Fig. 4,

causes the stop 51 to'be rotated by the link 54 until the stop isdisposed downwardly from in The pressure of the spring 52o against thestop 51 immediately forces this along the shaft 52a against' the collar52b so that the stop 51 is now disposed under the box. With the downwardmovement of the table 33, the shafts 48 are returned to their positionsas shown in Fig. 4 by springs 53a connecting the lower ends of arms 53on the shafts 48. Normally the box is still disposed over the stop 51when the table 3ft reaches its downwardmost position as shown in Fig. 4,so that the stop 51 cannot be returned to its upward position by asfully described in the rst above aiaees the link 54. 'Ihis being thecase, the link 54 telescopes as above described causing the compressionof the spring 54f and when the box has entirely passed over the stop 61,this spring extends the link 54 to its full length and returns 4the stop51 to its upwardmost position as shown in Fig. 4.

'I'he ejector and stop mechanism 62 also includes an ejector spring 52d,coiled about the shaft 52a and anchored at its forward end adjacent thecollar 52D'. The opposite end of the spring 52d connects to a block 52eslidable on the shaft 52a and carrying an ejector dog 52j which is`constantly spring pressed into its upwardmost position as shown inFig. 1. Pivotally mounted on the block 58a is a chain pulley 58h overwhich a chain 58e, connected to the block 52e, extends, this chainpassing downwardly as shown in Fig. 5 and connects to a spring means 58dmounted on the frame 32 of the lidder 2|. The` spring means 58d takes upthe slack in the chain 52e when the table 33 is ln its downwardmostposition and as the table rises with the box disposed between the stops51 and 58, the chain 58e compresses the spring 58d to its limit and thenpulls the block 52e with the ejector dog 52j thereon in a leftwarddirection until this dog is free to be spring pressedA upwardly oppositethe rearend of the box as shown in Fig. 9. Thus, when the box is freedfrom thelongitudinal centralizers and from the `stop 51 by the outwardswinging of the shafts 48, the power of the spring 52d is releasedagainst the box through the ejector dog 52j in ejecting the box from thelidder 2|, this returning the dog 52j and spring 52d to the condition inwhich these are shown in Fig. 2.

Pivotally mounted on the inner face of a downward extension from thefront one of the longitudinal bars 45 as shown in Figs. 1 and 2, is aspring pressed latch having a lug 56 (Fig. 10) extending inwardtherefrom, this latch being po sitioned to be engaged by a box enteringthe machine 2|, rocked about its axis and then disengaged by said boxbefore the latter comes to rest upon the table r33 in its properposition. Leading from the `discharge end of the machine 2| is a sectionof roller conveyor 59.

The pre-presser 22 hasa frame 62, a vertically reclprocable table 63 anda table elevating power unit 64, all of which are identical with thecorresponding parts oi' the lid nailing and strapping machine 2| withthe exceptions to be noted hereinafter.

Mounted upon upper ends of four angle iron corner posts 65 of the frame62 is a presser plate assemblyv66 including longitudinal bars 61 and 68upon which are yieldably mounted a compresser plate 14, which is formedin two halves each of which is supplied with 'a soft rubber pad 19.

As above stated, the table 63 is supported on and verticallyreciprocable by the power unit 64 in the same manner as described in thefirst above mentioned co-pending application. As shown in Fig. 2, thetable 63 is substantially similar to the table 33 of the machine 2|, andboth of the tables in their downwardmost positions l stantially liketheassembly 52 excepting as to the means of operating 'the dischargestop Ill. The ejector and stop assembly |00 (Fig. 3) includes a shaft|05 which is supported as by having its opposite ends welded upon-theend bars of the table. This shaft supports a block |06 iixed thereto,said block carrying a chain pulley |01, underneath the bar |05, and abox rebound stop |06 pivotally.lmounted on said'block and yieldablyspring pressed upwardly into the position in which it is shown in Fig.3. Fixed upon the shaft |05 adjacent the` opposite endl of the table 63is afspring anchor collar ||0 to which is anchored a heavy contractilespring which is coiled about the shaft |05. The opposite end of thisspring is connected to a slide block i2 on which ispivotaily mounted anejector dog ||3, this being yieldably urged upwardly into the positionin which it is shown in Fig. 3 by a small concealed spring on said slideblock.

The frame 62 (Fig. 3) includes a longitudinally disposed channel ,ironmember |15 and a flexible chain ||6 extends from the slide block ||2,over the pulley |01, and downwardly through a suitable aperture in themember ||5 where -it is yieldably held by a spring means i i1 (Fig. 1).

Extending downwardly from one of the longitudinal bars 91 as shown inFig. 8 is a spring bracket finger `|24. As shown in Fig.y 3, thedischarge stop |0| has a hub |26 which, with a strong, stiff compressionspring |21 is trapped on the shaft |05 between the adjacent end bar 05and a stop collar |23. As shown in Fig. 7a., the hub |26 has adownwardly extending/bearing arm |29 which is apertured to receive vastub shaft |30 on which a cam roller |3| is rotatably mounted. VThebearing arm |29 has a lateral ex tension |32 which is connected by acontractile spring |33 to the spring bracket arm |24. The spring |33yieldably maintains the discharge stop |0| in upright position as shownin Figs. l, 2, 3, 5, 7a, 8 andi). 4

As shown in Figs. 1 and 2, the machines 2| and 22 are connected by ashort idle roller conveyor section |45, the opposite ends of which aresecured to the frame 32 and 62`of these machines respectively. Providedon the conveyor section |45 are bearing blocks |41 which carry a shaft|40 having mounted thereon a cam supporting rocker |49. The rocker |40has arms |50 which slidably support a cam |5| as shown in Figs. l,

2. 5. 6, 8 and 9. Light coil springs |52 on the arms |50 maintain thecam |51 against cap screws |50a screwed into the ends of arms |50. Thevrocker |49 also has an arm |53 which extends upwardly within thestructure of the table 33 when this is in its lowermost position and isengaged by a horizontal surface on the latch`55 whenever the lattermoves downwardly with the table 33 into its iowermost position as shownin Fig. 1. Whenever the arm |53 is disengaged by the latch 55, therocker' |59 rocks by gravity owing to the weight of cam. |5| so as tolower the latter into its lowermost position in which it is shown indotted lines in Fig. 7a.

The table 63 has ii'usher shafts |60 which are actuated in identicallythe .same manner as illustrated in the first of the aforementionedcopending applications, that is by rollers |6| and cam tracks |62 (seeFig. 4). These shafts have upwardly extending arms '|63 carrying lateralbox centralizing members |64, longitudinal box centralizing membersblades |66.

4ci' course, move upwardly with the table lai.

. control rod |96 (Fig. l.)

limit collar |65 and side ilusher` 3' on opposite ends lof each ilusher|66 is an end usher |66 having an oper' ating arm |63 which is connectedby a link |10 toy a. goose neck |1| formed on the upper end of theadjacent table guide member 96. When the table 63 is elevated and therollers |6| strike the cams |62, the shafts |60 are rotated, swingingthe fiushers |66 inwardly. The goose necks |1i, 63 and, with the inwardmovement of the flushers |66, the end fiushers |68 are swung into endushing positions as shown in Fig. 6 by the links |10, the end ilushersreaching these positions just as the side flushers |66 reach their fullinward flushing positions shown in this gure. y

The table 63 also carries an apertured upward Pivotaliy mounted limitcontrol finger |15 (Figs. 1 and 3) and a downward limit control cam |16.Carried onvthe inner face of one of the longitudinal bars 03 of thetable 63 is a low voltage box delivery control switch |11 (Figs. 1 and3) having a `switch finger |16.

Extending forwardly from the channel frame member (Fig. 3) is a framebracket |30, and

a switch control shaft |3| is pivotaliy mounted` The arm |66 connects tothe lower end of a which extends upward through the aperture in the nger|15 and has its -upper extremity guided vertically by a guide |01provided on the overhead frame-plate 61 as shown in Fig. l. The rod |96has an \upward |90 provided thereon as shown in Fig. l, the position ofthis collar on the rod |36 being adjustable, and being adapted to beengaged by the upward limit finger |15 on the table 63 as this tableapproaches its upwardmost position to reverse the switch |33 and theoperation of the elevator mechanism 64, this causing the. table to belowered.

The arm |61 as shown in Figs. l and 3 is adapted to be engaged by thedownward limit control cam |16 on rthe table 63 as the latter approachesits downwardmost position so as to rock the shaft |8| and operate theswitch |93 to halt the downward movement of the table 63. The arm |83 isconnected through a link 200 with a full bell crank 20| which is in turnconnected by a link 202 to a leverl 203 pivotally mounted on a bracket204 which is supported on the channel member H6. The upper end of thelever 203 has a dog 205 pivotally mounted thereon as shown in Fig. 3,this dog being yieldably held by a spring 206 in the position shown. Thearm |69 has a pin 2id at its lower end which is connected by acontractile spring 2li to avpin y this system being represented by theconveyor 220 and being driven by a motor 22| connected to 2 i2 providedon. the bracket |60. Also provided on this bracket..

this conveyor. This motor is controlled by switches 222 and 223 havingarms 224 and 225 which are positioned as shown inFigs. 1 and 2 so as'tobe engagedby boxes travelling upon the conveyor 220 and upon a shortsection of idle conveyor 221 located between the conveyor 220 and themachine 22. The motor 22| is driven by power transmitted throughswitches 222 and 223 with the latter connected in parallel so that thismotor runs continuously excepting when both arms 224 and 225 are engagedby boxes as aforesaid to deenergize the motor 22|.

Mounted so as to extend slightly above the uppermost surface of the idleroll conveyor section 221 just at the entrance to the machine 22 is afeed roller 230 which is power driven by a motor 23|, current being`supplied to said motor through the switch |11, the motor beingdeenergized whenever the arm |18 is depressed by a box resting on thetable 63. Owing tothe necessity for the table 83 to reciprocatevertically in the operation of the machine 22, switch |11 is, of course,connected to the motor 23| through a flexible cord.

Operation As boxes B travel along the conveyor 220 onto the idle rollconveyor section 221 so as to extend onto the feed roller 230, this feedroller picks up the foremost box and delivers it at an accelerated speedonto the table 63 of the machine 22. The

rapidity of this delivery causes the box, upon engaging the dischargestop |0| to compress the spring |21 measurably as shown in dotted linesin Fig. 9, and as the inertia of the box is overcome, the latter isrepelled back against the stop |08 which in the meantime has beenlifted` by its spring into position at the rear of the box. With thisrearward movement, the box also engages the dog 205 and shifts thisrearwardly thereby rocking the lever 203 t'o swing the lower end of thisforwardly and, through the linkage 200, 20| and 202 and the arm |88,rocking the shaft |8| to swing the overthrow arm |89 from the positionin which it is shown in Figs. 3 and 4a to the position in which thelatter arm is shown in Fig. 4b. It will be noted that in this movementof the arm |89 the axis of spring 2|| is shifted across the axis of theshaft |8| to bring the arm |89 against stop 2|3 so that the spring 2||now retains the shaft |8| in the position into which it was justshifted. This rotation of the shaft |8| lifts upon the link |90 and theeye |9| (see Fig. 1) A so as to lift on the collar |94 carried by thelink |90 thereby drawing upwardly the stem |92 of the switch |93. Thisactuates the switch to set in motion the elevator mechanism 64 therebystarting to move the elevator table 63 upwardly.

' Owing to the fact that the spring 2| holds the arm |89 in the positionin which it is shown in Fig. 4b this upward movement of the table 63will now continue until some positive force has been applied to throwout the switch |93.

As box B moves onto the table 63 and over the switch |11, it engages theswitch arm |18 and shuts off the motor 23|, thus stopping rotation ofthe feed roller 230. Any box delivered onto the conveyor section 221therefor while the box B isstill resting on the table 63 will merelycome to rest with its forward end resting on the roller 230 as box B isshown in Fig. 1. When resting in this manner, the foremost box has movedentirely off the conveyor 220 so as not to interfere with continuedoperation of the latter. When in this position, the foremost box engagesthe arm 225 and swings it so as toshut off the switch 223. If, whilethis box remains in this position, another box arrives at the dischargeend of the conveyor 220 so as to engage and swing the arm 224 and shutolf the switch 222, this deenergizes the motor 22| and causes theconveyor system terminating with the conveyor 220 to be halted.`

This halting of the conveyor 220 continues until the foremost box issubsequently delivered into the machine 22, as will be describedhereinafter.

As the table 63 is elevated with the box' B resting thereupon, the fruitF which extends above the upper end of the box is brought intoengagement with the pad 90 of the pressing plate 14 so as to compressthis fruit into the box and leave the upperi face of this fruit disposedwith an arcuate contour corresponding to that of the presser plate 14.The amount of pressure thus applied is determined by the position of thecollar |98 on the control rod |96 so as to select the height at whichthe table has been lifted before the switch |93 is reversed thus causingthe elevator mechanism 64 to cease elevating the table 63 and commencedrawing the latter back downwardly.

A center guard 80 disposed over a partition P of the box B comes to reston this partition and is lifted upwardly thereby during the elevationof' the box.

As the table 63 rises, spring means I 1 as shown in Fig. l is rstcompressed and then draws downwardly on the chain ||6 to draw thel slideblock ||2 leftward and stretch spring This carries the ejector dog 3 tothe left until it comes up underneath the reversal stop |08 opposite therear end of the box B. As the elevator table starts downwardly, the dog3 is shifted by the springs against the rear end face of the box B andfurther contraction of the spring for the time being is now prevented bythe trapping vof the box between the'centralizers |65 and the presenceof stop |0| along the path in which the box mustV be ejected in feedingthis into the lidder 2|. When the table 63 has moved downwardly to thepoint illustrated in Fig. 5, the centralizers |64|65 and ilushers|61-|68have been withdrawn from their embrace of the box.

With this release of the box B from all restraint but that of the stopv|0|, the powerful pressure exerted against the box by the springcompresses the weaker spring |21 between the discharge stop |0| and theadjacent end bar 95 of the table 63, this movement of the box tiontherefrom by the ejector |00, so as to impel this box over the idleconveyor |45 and into the machine 2| as shown in Fig. 8.

As the box enters the machine 2|, it engages latch 55 and swings itforwardly thus shifting the lug 56 on the latch 55 (Fig. l0) away fromover aisance said stop is not only rendered free from cam |5| by thelowering ofthe latter as aforesaid, but is also now out of alignmentwith this cam by the response above noted of the stop to the spring|21.y The stop illl is thus doubly free to respond to its normalizingspring |33 which returns the stop to its upright position as shown inFig. 8.

From the foregoing, it is clear that the delivery of a box onto thetable -33 in the lidder 2| dlsengages the latch 55 from the cam rockerarm |53 so as to permit the cam |5| 'to drop into its inoperativefposition .relative to the stop lill. It

, is likewise clear that the cam .|i must be raised -33 takes place inlidding a into operative position before a box may againbe dischargedfrom the pre-presser 22. The only way in which the cam |5| can be thusraised is by the elevation of the tal'ile 33 of the lidding machine 2| asumcient distance so that on its return downward the lug 56 on the latch55 will engage and rock the cam rocker |49 to lift the cam |5i. Areciprocation of the table 33 having this eilect may be accomplished 35,of course, without lidding a box resting on this table. However, in thenormal operation of the apparatus'Z, no such partial reciprocation ofthe table 33 would take place. Instead, each time a box is delivered tothe machine 2| and is centralizel longitudinally by the stops 5l and 58,the operator, after placing a lid L in the machine and inserting a strapin the strapper head 3l, steps on the pedal 35 causing the elevatingmechanism 3l to lift the table 33 against the nailing heads 36 and thestrapper head the box with the ends of the lid engaging the ends of thebox, nail the lid ends to the box ends, place the strap over the middleof the cover, and secure the ends of the strap to the sides of the box.When this is accomplished, the operator releases his foot from the pedal35 which automaticallyresults in the reversal of the motor in theelevating mechanism 3l thereby withdrawing the table 33 downward to itslowermost position as shown in Fig. 1. The stop 51 is rotated 4out ofstop position with the downward movement of the table 33 by suitablelinkage connecting this stop to the usher shafts 43, and thelongitudinal box centralizers 5B are also withdrawn by therotation ofsuch shafts to nonimpeding positions as shown in this figure, whereuponthe ejector dog of the vmechanism 52 ejects the lidded and strapped boxfrom the table 33 onto thegravlty conveyor section 59. v

Whenever a complete reciprocation of the table box, a return of thetable to its` downwardmost position vas shown in Fig. 1 always resultsin the lug 56 on the'latch 55 engaging the cam rocker |49, this liftingthe cam |5| into operative position. When this occurs, oi course, alidded box is just being ejected from the table 33, leaving the latterready to receive another box to be lidded. It, when the table 33 thusmoves downwardly, the table 63 of the, prepresser 22 is in itsdownwardmost position with a box resting thereon andwaiting to beejected therefrom, the upward movement of the cam. lil

by manipulating the pedal 31 so as to apply a lid to 5 I) resulting`from the return of the table 33 to its lowermost position will cause thecam |5| to' engage the roller |3| and rotate the stop ||l| out from infront 0I the box B on the table 63 in exactly the same manner as, andwith the same ref" 5 suits as above described, wherethe cam|5| waslatched lin raised position and was then engaged by the roller |3| asthe table 63 returned to its lowermost position. That is, in eithercase, the out from in front of 1o allowing the box to be cam|5|`rotateslthe stop ibi the box on the table 63 ejected by the ejector|00, discharging the box rapidly from the machine 22 into the machine2|.

Y What I claim is:

1. In combination: a lidder including a nailing table, lid pressing andnailing mechanism suspended overhead, and an elevator for lifting saidtable with a packed box resting thereon into operative relation withsaid mechanism to lid said box, and then lowering said table to permitthe iidded box to be discharged therefrom; feeding means for deliveringa box onto said table; stop l means for preventing a box from passingfrom said feeding means into said lidder; and control means responsiveto the downward travel of said table to render said stop meansinoperative' to stop said last mentioned box from being fed into saidlidder.

2. In combination: a lidder including a nailing table, lid pressing andnailing/mechanism sus- 3o pended overhead, and an elevatorfor liftingsaid table with a packed box resting thereon into operative relationwith said mechanism to lid said y box, and then lowering said table topermit the lidded box to be discharged therefrom; feeding 3g means fordelivering a box onto said table; stop means for preventing a box frompassing from said. feeding means into said' lidder; control meansresponsive to the downward travel 'of said table to render stop saidlast mentioned box from being fed into said lidder;v and m arisautomatically restoring said stop means to ox stopping condition withthe passage oi a boxthereover.

l 3. In combination: table, lid pressing and nailing mechanism suspendedoverhead, andan elevator for lifting said table with a packed boxresting thereon into operative relation with said mechanism to iid saidbox, and then the lidded box to be discharged therefrom; feeding meansfor delivering a box onto said table; stop means for preventing a boxfrom passing from said feeding means into said lidder; control meansresponsive to the downward travel' of said 55 table to render said stopmeans inoperative to stop said last mentioned box from being fed intosaid lidder; and means freeing said stop means from said control meansto permit said stop means to stop another box subsequentlyarrlv- 60 ingadjacent thereto. v

4. In combination: a lidder including a nailing table, lid pressing andnailing mechanism suspended overhead and an elevator for lifting saidtable with a packed box resting thereon into o5 ,operative relation saidstop means inoperative to. 40

a lidder including a nailing lowering said table to permit 5o preventinga box from 1.0

5. In combination: a lidder including a nailing table, lid pressing andnailing mechanism suspended overhead and an elevator for lifting saidtable with a"` packed box resting thereon into operative relation withsaid mechanism to lid said box, and then lowering said table to permitthe lidded box to be discharged therefrom; feeding means for rapidlypropelling a box onto said table; stop means for preventing a box frompassing from said feeding means into said lidder; control meansresponsive yto the downward travel of said tableeto render said stopmeans inoperative to stop said 'last mentioned box from being fed lintosaid lidder; and means automatically restoring said stop means Vto boxstopping condition with the passage of a box thereover.

6. In combination: a lidder including a nailing table, lid pressing andnailing mechanism suspended overhead, and an elevator for lifting saidtable with a packed box resting thereon into operative relation withsaid mechanism to lid said box, and then lowering said table to permitthe lidded box to b'e dischargedtherefrom; feeding means for deliveringa box onto said table; stop means for preventing a box from passing fromsaid feeding means into said lidder; con

trol means responsive to the downward travel of said table to rendersaid stop 'means inoperative to stop said last mentioned box from beingfed into said lidder; Vand means independent of the`box entering saidlidder to be lidded, for automatically removing the previously liddedbox from said lidder.

7. In combination: a lidder including a nailing table, lid pressing andnailing mechanism suspended overhead, and an elevator for lifting saidVtable with a packed box resting thereon into operative relation withsaid mechanism to lid said box, and then lowering said table to permitthe lidded box to be discharged therefrom; feeding means for deliveringa box onto said table; stop means for preventing a box from passing fromsaid feeding means into said lidder; control means responsive .to thedownward travel of said table to render said stop means inoperative tostop said last mentioned box from being fed into said lidder; and meansindependent of the box entering said lidder to be lidded, forautomatically and rapidly ejecting the previously lidded box from saidlidder.

HALE PAXTON.

